Quick and Easy Binding Level Increase?

Hey ive been playing the game for a while and i was just wondering what the easiest and quickest way to get your binding guild rank up is because i have just been killing hundreds of enemies to get my level up and then using that money to buy the chromium or guardian pearls then ditching them to the binding shop. I havent acquired vellgander yet but should i just get that and start beasting in their for easy money and rare items?

oh alright, thanks